public static void CallFactory()
{
IShape _IShape;
Console.WriteLine("Type shape to display.");
string sh = Console.ReadLine();
_IShape = ShapeFactory.GetShape(sh);
Console.WriteLine("Enter shape color");
string color = Console.ReadLine();
_IShape.color = color;
_IShape.Getinputs();
_IShape.CalculateArea();
_IShape.CalculatePerimeter();
Console.ReadKey();
}
// use to demonstrate the Factory Design Pattern
public static void ExecuteDemo()
{
//get ShapeFactory object
ShapeFactory shapeFactory = new ShapeFactory();
//get Shape Rectangle
Shape shape1 = shapeFactory.GetShape("rectangle");
shape1.Draw();
//get Shape Square
Shape shape2 = shapeFactory.GetShape("square");
shape2.Draw();
//get Shape Circle
Shape shape3 = shapeFactory.GetShape("circle");
shape3.Draw();
Console.ReadLine();
}